CMC Steel Texas (Structural Metals, Inc.)
Large load · 1 STEEL MILL ROAD, Seguin, TX
CMC Steel Texas is an electric arc furnace steel mill at 1 Steel Mill Road in Seguin, Guadalupe County, Texas. It is operated by Structural Metals, Inc., whose parent owner is Commercial Metals Company. The mill melts recycled iron in an electric arc furnace and has been served by Guadalupe Valley Electric Cooperative. CMC has described itself to the Texas commission as one of the largest participants in ERCOT's EILS program.
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Overview
The mill charges recycled iron into an electric arc furnace in its melt shop. The Texas federal operating permit authorizes Structural Metals, Inc. to operate the SMI-Texas iron and steel mill in Guadalupe County.
Profile
- Electricity and grid
- A 1979 Texas court record states that Guadalupe Valley Electric Cooperative furnished the mill's electricity over two sets of overhead transmission lines, each carrying 69,000 volts, one kept as a standby line. A GVEC history describes a 138,000-volt line from its Seguin Substation to the mill, upgraded in 1975. In a Public Utility Commission filing, CMC called itself one of the largest participants in the EILS program in ERCOT and said it remained offline for 20+ hours during the February 2011 emergency. CMC's 2021 sustainability report states that all its mills participate in an Interruptible Rate Program, and its energy page says the Seguin mill has a VPPA that provides 18% of its electricity from renewables.
- Ownership
- EPA's registry lists Structural Metals Inc as operator and owner of the Seguin facility, with Commercial Metals Company as parent owner.
Facility
- Activity
- Electric arc furnace steelmaking from recycled metal
- Industry
- Manufacturing
- Site type
- Facility
- Operating status
- Operating
Reported Jun 12, 2026
Permits and agreements
- Permit
- Authorization No.: 8248, Issuance Date: 03/25/2022
Issued Mar 25, 2022
- Permit
- PSD Permit No.: PSDTX708M7, Issuance Date: 03/25/2022
Issued Mar 25, 2022
- Agreement
- VPPA that provides 18% of its electricity from renewables